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CCDB → Angiosperms → Hydrocharitaceae → Elodea
| Taxon name | Status | Median (n) |
| Elodea callitrichoides (Rich.) Casp. | Accepted | 8 |
| Elodea canadensis Michx. | Accepted | 24 |
| Elodea nuttallii (Planch.) H. S. John | Accepted | 24 |
| Elodea densa (Planch.) Casp. | Synonym of Egeria densa Planch. | 24 |
| Elodea longivaginata H. S. John | Synonym of Elodea bifoliata H. S. John | 12 |
| Elodea callitrichoides (Rich) Casp. | Synonym of Elodea callitrichoides (Rich.) Casp. | 8 |
| Elodea gigantea J. K. Santos | Synonym of Elodea canadensis Michx. | 24 |
| Elodea occidentalis (Pursh) H. S. John | Synonym of Elodea canadensis Michx. | 24 |